LED

Light-emitting diode therapy. Treatment with drugs that become active and may kill cancer cells when exposed to light. LED therapy is a type of photodynamic therapy, which uses a special type of light to activate the drug.

A Light Emitting Diode is a semiconducting device that emits light when an electric current runs through it. It uses significantly less power, releases less heat, and lasts a lot longer than an incandescent light bulb.